Abstract: Hybrid isolated micro-grid has such advantages as energy saving, environmental protection and high power supply reliability. As to hybrid isolated micro-grid that contains wind turbine generators, photovoltaic batteries, energy storage batteries and diesel generators, the full life-cycle economic evaluation model that can assess cost from construction investment and operation maintenance to recycling is built based on the full life-cycle theory. Two evaluation indexes are also proposed to measure the full life-cycle cost of the hybrid isolated micro-grid. Through the example analysis, the full life-cycle economic information of the hybrid isolated micro-grid with different dispatch strategies is studied, and the full life-cycle economic difference between the hybrid isolated micro-grid and the traditional isolated power system is also compared. The analysis results show that hybrid isolated micro-grid is more energy saving and economic, which verify the feasibility and effectiveness of the proposed full life-cycle economic evaluation model.